diff --git a/src/device/mod.rs b/src/device/mod.rs
new file mode 100644
index 0000000..343b72b
--- /dev/null
+++ b/src/device/mod.rs
@@ -0,0 +1 @@
+pub mod virtual_device;
\ No newline at end of file
diff --git a/src/device/virtual_device.rs b/src/device/virtual_device.rs
new file mode 100644
index 0000000..c46cc22
--- /dev/null
+++ b/src/device/virtual_device.rs
@@ -0,0 +1,13 @@
+pub struct VirtualDevice {
+    pub name: String,
+    pub id: String,
+    pub is_input: bool,
+    pub is_output: bool,
+    pub channels: u8,
+    pub sample_rate: u32,
+    pub buffer_size: usize,
+    output_index: Vec<usize>,
+    output_buffer: Vec<Vec<f64>>,
+}
+
+impl VirtualDevice { }
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index 9dc53fb..b49723a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,6 +1,7 @@
 mod args;
 mod config;
 mod commands;
+mod device;
 
 use clap::Parser;